Melting Point: 1246°C Boiling Point: 2061°C Density: 7.3g/cm3 State of matter: Solid at room temperature
Origin Of the Symbol & Name: Mn, Manganese comes from the Greek word "magnes" and was first found in Magnesia, modern day Greece. Though it was not proposed as an Element until 1774 in by Carl Wilhelm Scheele, then discovered by Johan Gottlieb Gahn later that year. Location and Abundance: Mn is found in the land and water at rates of .002mg/L in the water and 950mg/kg making up .14% of the Earth's crust. In 1803 Manganese nodules containing 24% manganese (mixed with copper and nickel) were found on the ocean floor and these nodules are now collected to harvest their manganese.
Uses:
Decolorizes geen glass
Essential to plants
It makes steel aloy strong
Used in black paint
Facts:
Pure Manganese costs $2,325/ton
Large amounts of manganese are considered toxic, but studys show manganese is important for absorbing vitamins and has other benifitial qualitys.
Manganese
Manganese Ore
Atomic Number: 25Symbol: Mn
Atomic Mass: 54.9380
Protons: 25
Neutrons: 30
Electrons: 25
Melting Point: 1246°C
Boiling Point: 2061°C
Density: 7.3g/cm3
State of matter: Solid at room temperature
Origin Of the Symbol & Name:
Mn,
Location and Abundance:
Mn is found in the land and water at rates of .002mg/L in the water and 950mg/kg making up .14% of the Earth's crust.
In 1803 Manganese nodules containing 24% manganese (mixed with copper and nickel) were found on the ocean floor and these nodules are now collected to harvest their manganese.
Uses:
Facts:
Resorces:
http://education.jlab.org/itselemental/ele025.html